121041906 has 16 divisors (see below), whose sum is σ = 242510304. Its totient is φ = 40276224.

The previous prime is 121041901. The next prime is 121041923. The reversal of 121041906 is 609140121.

It is a super-2 number, since 2×121041906² = 29302286016225672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121041901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14020 + ... + 20943.

It is an arithmetic number, because the mean of its divisors is an integer number (15156894).

Almost surely, 2^121041906 is an apocalyptic number.

121041906 is an abundant number, since it is smaller than the sum of its proper divisors (121468398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121041906 is a wasteful number, since it uses less digits than its factorization.

121041906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35545.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 121041906 is about 11001.9046532862. The cubic root of 121041906 is about 494.6658371119.

The spelling of 121041906 in words is "one hundred twenty-one million, forty-one thousand, nine hundred six".